Function wideMulU64

wideMulU64(a: bigint, b: bigint): [bigint, bigint]
Wide multiplication for 64-bit unsigned integers.
Parameters
- a: bigint
  First 64-bit value as bigint
- b: bigint
  Second 64-bit value as bigint
Returns [bigint, bigint]
Tuple of (low 64 bits, high 64 bits) as bigints
- Defined in widening.ts:66